ELECTRONIC EDUCATIONAL VIDEO SYSTEM APPARATUS,申请号EP19880117374-传众专利搜索

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发明名称	ELECTRONIC EDUCATIONAL VIDEO SYSTEM APPARATUS
摘要
申请公布号	EP0313976(A3)	申请公布日期	1990.03.14
申请号	EP19880117374	申请日期	1988.10.19
申请人	VIDEO TECHNOLOGY ELECTRONICS, LTD.	发明人	CHEW, WAI-KWOK;LAW, GARRY CHIU-HING;FONG, CHI-MING
分类号	G09B7/08;G09B5/06;G09B7/04;(IPC1-7):G09B5/06;G09B7/00	主分类号	G09B7/08
代理机构		代理人
主权项
地址

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